Lamp or lantern burner.



PATENTED APR. 23, 1907.

G. H. ROLFES.

LAMP OR LANTERN BURNER. APPLICATION FILED NOV. 30, 1906.

Inventor". Gaz qefljwlfes B g Atty.

through the burner.

UNITED STATES ATENT oer-roe.

LAMP OR LANTERN BURNER.

Specification of Letters Patent.

Patented April 23, 1907.

lltmlication filed November 30,1906. Serial No. 345,667.

To ttZZ wltom it ntay concern:

Be it known that I, GEoeGE II. ROLFES, a citizen of the United States of America, residing in the city of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Lamp or Lantern Burners, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to a lamp or lantern burner for use in burning petroleum and it has for its object to provide a construction whereby the efficiency in the combustion of the illuminant is increased and the degree of illumination is enhanced by virtue of special features that cause the oxygen in the air fed to the burner to be delivered in a diffused condition to the burner wick, and also whereby the air passing to the burner at the exterior thereof is prevented from rushing to the base of the flame to the detriment of the illuniinating power.

Figure I is a section taken through a lamp or lantern fount and my burner. Fig. .[I is a top or plan view of the parts shown in Fig. I. Fig. III is a vertical cross section taken Fig. IV is a top or plan view of the burner with the cone omitted. Fig. V is a perspective view of the band that surrounds the wick tube and the jacket fitted to said tube. Fig. VI is a perspective view of the jacket applied to the wick tube. Fig. VII is an enlarged vertical section taken diagonally through the burner on line V II VII, Fig. IV.

A designates a lamp or lantern fount which may be of any ordinary form and to which my burner is shown applied.

1 designates the body or main shell of my burner and 2 the wick tube extending vertically through said body.

3 is an intermediate jacket of inverted U- shape open at its ends and provided with a central slot 4 at the top thereof of greater width than the wick tube. This jacket is seated upon the crown of a cap 1 at the top of the burner body and. its upper end which is fitted to the wick tube is located slightly beneath the upper end of the wick tube in order that the side walls of the slot -i may be located beneath the top of the tube. The legsof the jacket project slightly over the crown of the cap 1.

5 designates a housing surrounding the jacket 3 which partially encloses the wick I tube of the burner. This housing is of ap proximately rectangular shape and its upper end projects above the wick tube and the jacket 3. The housing is provided with flat end walls 6 that lit snugly to the open ends of said jacket to close them, and the side walls of the housing are contracted at the points 7 so that they are brought into close proximity with the sides of the jacket, as seen most clearly in Fig. IV. These side walls rest directly upon the crown of the burner body cap 1 while the corners 8 of the housing project over the crown of said cap to provide corner air ducts 9 through which air may ascend to gain access to the exposed upper end of the wick in the wick tube and sup ply oxygen to the flame burning by the consumption of illuminant conducted by the wick. As previously stated the legs of the jacket 3 project slightly over the crown of the cap 1 and due to their so projecting, air ducts are provided at the lower ends of said legs and between them and the Hat end walls of the housing, in order that a limited supply of air may enter said acket and pass upwardly therethrough and through the air openings provided by the slot 4 in said jacket to the upper end of the wick tube. Limited quantities of air are, therefore, supplied to the flame, both through the jacket and the corners of the housing in a diffused manner, as a consequence of which the combustion of the illuminant is greatly enhanced. The jacket 3 being terminated at its upper end beneath the upper end of the wick tube, the air fed through the air openings provided by the slot 4 in said acket is prevented from being delivered too suddenly to the [lame and furthermore these air openings being beneath the upper end of the wick tube are not subjectto being clogged by the charred particles of wick which naturally result during the combustion of the illuminant.

l0 designates a perforated ventilator rim which constitutes a part of the burner body and flares outwardly from said body beneath the upper end of the wick tube, the jacket 3 and the housing 5. 11 is a slotted cone mounted upon the ventilator rim and serving as a housing for said parts.

12 is a skirt depending from the lower end of the cone and into the lower end of which air enters to pass upwardly through the ventilator rim and to the top of the burner to supply oxygen to the flame by passing around the housing 5.

IIO

13 is a perforated guard which is applied to the cone 11 and flares outwardly therefrom. This guard extends above the bottom of the slot in said cone and acts to prevent access of air to the flame burning from the wick in the burner, due to its partially shielding the cone and causing the air to pass gradually through the perforations in the guard before reaching the cone. The guard also serves as a means for causing the flame to be widened, due to said guard becoming heated after the illuminant has been ignited.

I claim 1. In a lamp or lantern burner, the combination of a body, a wick tube in said body, and air diffusing means comprising an intermediate jacket fitted to said wick tube, a housing surrounding said intermediate jacket and fitted thereto and a cone surrounding the housing.

2. In a lamp or lantern burner, the combi nation of a body, a wick tube in said body, and air diffusing means comprising an intermediate jacket fitted to said wick tube, a housing surrounding said intermediate jacket and fitted thereto and a cone surrounding the housing; said intermediate jacket being provided with air feeding openings located beneath. the upper end of said wick tube, substantially as set forth.

3. In a lamp or lantern burner, the combination of a body having a cap, a wick tube in said body, and air diffusing means comprising an intermediate acket mounted on said cap fitted to the wick tube and spaced therefrom and having its corner projecting over the crown thereof and provided at its upper end with air feeding openings, and a housing-surrounding said intermediate j acket,

substantially as set forth.

at. In a lamp or lantern burner, the combi nation of a body having a cap, a wick tube in said body, and air diffusing means comprising an intermediate jacket fitted to said wick tube and spaced therefrom, and a housing surrounding said intermediate jacket and having its corners projecting over the crown of said cap and provided with air feeding passageways through the corners of said housing, substantially as set forth.

5. In a lamp or lantern burner, the cornbination of a body, a wick tube in said body, air diffusing means comprising a jacket fitted to said wick tube and spaced therefrom and a housing surrounding said jacket a cone surrounding said Wick tube and provided with a slot at its upper end, and a guard surrounding said cone, substantially as set forth.

6. In a lamp or lantern burner, the combination of a body, air diffusing means comprising a jacket fitted to a wick tube and spaced therefrom and ahousing surrounding said jacket a cone surrounding said wick tube and provided with a slot at its upper end, and a perforated guard surrounding saidcone, substantially as set forth.

7. In a lamp or lantern burner, the combination of a body, air diffusing means comprising a jacket fitted to a wick tube and spaced therefrom and a housing surrounding said jacket a cone surrounding said Wick tube and provided with a slot at its upper end, and a flaring guard surrounding said cone, substantially as set forth.

GEO. H. ROLFES.

In presence of NE LIE V. ALEXANDER, BLANGHE HOGAN. 

